19870569

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43291}}^1$

素因数の和:43317

約数の個数: 16

約数和(自身を含む): 31170240

約数和(自身を除く): 11299671

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 43291, 129873, 389619, 735947, 1168857, 2207841, 6623523, 19870569]

約数ペア:

[(1, 19870569), (3, 6623523), (9, 2207841), (17, 1168857), (27, 735947), (51, 389619), (153, 129873), (459, 43291)]